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    題名: CMOS Magnetic Field to Frequency Converter
    作者: Chen, Shr-lung;Kuo, Chien-hung;Liu, Shen-iuan
    貢獻者: 淡江大學電機工程學系
    日期: 2003-02-01
    上傳時間: 2011-10-15 00:55:20 (UTC+8)
    摘要: In this paper, a CMOS magnetic field to frequency converter with high resolution is presented. It is composed of two voltage-controlled ring oscillators whose output frequency differences linearly vary with the magnetic field perpendicular to the chip surface. The prototype circuit has been fabricated in a 0.5-/spl mu/m CMOS process and operated at a 5-V supply voltage. The measured sensitivity is 24 kHz/mT and the power consumption is 5.1 mW. The small equivalent resolution of at least 20 /spl mu/T can be achieved. The frequency offset is 42 kHz when no magnetic field applied. Its nonlinearity within /spl plusmn/120 mT is smaller than 0.56%.
    關聯: IEEE Sensors Journal 3(2), pp.241-245
    DOI: 10.1109/JSEN.2002.807485
    顯示於類別:[電機工程學系暨研究所] 期刊論文

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